
File sharing and productivity.
Podio API is a free Documents & Productivity API that requires OAuth authentication, is served over HTTPS and has unconfirmed CORS support.
Podio is the online work platform. Manage, share, and get your work done smarter together with tools that work like you. Free for 5 Users.
Details from developers.podio.com.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Send PDFs, ZPL labels and ESC/POS receipts to your own printers from any language; free tier
The Podio API is provided by Podio (developers.podio.com). Podio is the online work platform. Manage, share, and get your work done smarter together with tools that work like you. Free for 5 Users.
Yes. The Podio API is listed in the Documents & Productivity category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Podio API uses OAuth authentication, so you need to register for credentials before making requests.
CORS support for the Podio API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Podio API is served over HTTPS, so it's safe to use in production.